friends i have created a pdfview in my app using webview successfully. But sometimes, i am facing crashes when i load pdf files with more pages like above 40, it will be helpfull if anyone of you guys can tell me why am i getting this message and what i have to do to avoid getting this error.Below is my logcat error message, which i got.
Logcat error:
Out of memory on a 1322872-byte allocation.
FATAL EXCEPTION: AsyncTask #2
java.lang.RuntimeException: An error occured while executing doInBackground()
at android.os.AsyncTask$3.done(AsyncTask.java:300)
at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:355)
at java.util.concurrent.FutureTask.setException(FutureTask.java:222)
at java.util.concurrent.FutureTask.run(FutureTask.java:242)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
at java.lang.Thread.run(Thread.java:841)
Caused by: java.lang.OutOfMemoryError
at android.graphics.Bitmap.nativeCreate(Native Method)
at android.graphics.Bitmap.createBitmap(Bitmap.java:836)
at android.graphics.Bitmap.createBitmap(Bitmap.java:813)
at android.graphics.Bitmap.createBitmap(Bitmap.java:780)
at com.sun.pdfview.PDFPage.getImage(PDFPage.java:219)
at android.os.AsyncTask$2.call(AsyncTask.java:288)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
Below is my code:
RandomAccessFile f = new RandomAccessFile(file, "r");
data1 = new byte[(int)f.length()];
f.readFully(data1);
RandomAccessFile f = new RandomAccessFile(file, "r");
byte[] data1 = new byte[(int)f.length()];
f.readFully(data1)
ByteBuffer bb = ByteBuffer.NEW(data1);
PDFFile pdf = new PDFFile(bb);
PDFPage PDFpage = pdf.getPage(1, true);
final float scale = ViewSize / PDFpage.getWidth() * 0.95f;
float pdfWid = PDFpage.getWidth() * scale;
float pdfH = PDFpage.getHeight() * scale;
Bitmap page;
if(page != null){
page.recycle();
page = null;
}
page = PDFpage.getImage((int)pdfWid, (int)pdfH, null, true, true);
ByteArrayOutputStream stream = new ByteArrayOutputStream();
page.compress(Bitmap.CompressFormat.PNG, 100, stream);
byte[] byteArray = stream.toByteArray();
stream.reset();
String base64 = Base64.encodeToString(byteArray, Base64.NO_WRAP);
String html = "<!DOCTYPE html><html><body bgcolor=\"#b4b4b4\"><img src=\"data:image/png;base64,"+base64+"\" hspace=10 vspace=10><br>";
int size = pdf.getNumPages();
try{
for(int i = 2; i <= size; i++)
{
PDFpage = pdf.getPage(i, true);
page = PDFpage.getImage((int)pdfWid, (int)pdfH, null, true, true);
page.compress(Bitmap.CompressFormat.PNG, 100, stream);
byteArray = stream.toByteArray();
stream.reset();
page.recycle();
base64 = Base64.encodeToString(byteArray, Base64.NO_WRAP);
html += "<img src=\"data:image/png;base64,"+base64+"\" hspace=10 vspace=10><br>";
}
}catch (Exception e){
Log.d("error", e.toString());
}
stream.close();
html += "</body></html>";
wv.loadDataWithBaseURL("", html, "text/html","UTF-8", "");
Well, i found what's the problem i was facing in my code, it was the heap size which caused the OutofMemory Exception. So, i just increased my heap size by declaring android:largeHeap="true" in Manifest which solved the issue.